CN104043574A - Process for uniform spraying of metal framework - Google Patents
Process for uniform spraying of metal framework Download PDFInfo
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- CN104043574A CN104043574A CN201410292670.5A CN201410292670A CN104043574A CN 104043574 A CN104043574 A CN 104043574A CN 201410292670 A CN201410292670 A CN 201410292670A CN 104043574 A CN104043574 A CN 104043574A
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- metal framework
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Abstract
The invention provides a process for uniform spraying of a metal framework. The process includes the following steps that firstly, the surface of the metal framework is cleaned; secondly, the surface of the metal framework is dried; thirdly, at room temperature, protective spraying is conducted through a vacuum spraying machine; fourthly, curing is conducted, wherein baking temperature ranges from 100 DEG C to 160 DEG C, and time ranges from 5 min to 30 min. By the adoption of the process, the thicknesses of sprayed films are uniform, no compressed air exits in paint, no mixture of the paint and the air exists, and the pollution index of the spraying working environment is small.
Description
Technical field
The present invention relates to the manufacturing technology field of metallic article, more particularly, particularly a kind of even spraying coating process of metal framework.
Background technology
Within metal framework is mainly used in that container is fixed on to a space, metal framework adopts metal material, and the quality of metal framework is except the mechanical performances such as self structure, and the quality of outward appearance coating quality is also the emphasis that user pays close attention to.On the one hand, spraying technology plays product to prevent the effect of corrosion, is also outward appearance sucking action on the other hand, can say that the quality of coating quality has directly affected the direct feel of user to metal framework, thereby affect the sale in market.But, with regard to the spraying technology of current domestic metallic article, easily cause the phenomenon such as uneven thickness, coating refluence, have a strong impact on coating quality.
Summary of the invention
The object of the present invention is to provide a kind of even spraying coating process of the metal framework that can evenly spray.
The even spraying coating process of metal framework of the present invention, comprises the following steps: the step that S1. cleans the surface of metal framework; The step of S2. drying; S3. carry out at ambient temperature, the step of the spraying of protectiveness by vacuum spray painting machine; S4. solidify, baking temperature is at 100 DEG C～160 DEG C, and the time is 15～60min.
Preferably, among above-mentioned steps S3, the airless spraying of described protectiveness refers to the surface that is sprayed at metal framework at coating under nitrogen protection.
Preferably, among above-mentioned steps S3, coating adopts polyvinylidene fluoride resin.
Compared with prior art; the advantage of invention is: the present invention carries out the spraying of protectiveness by vacuum spray painting machine; employing motor or compression pump pump the air among spray gun; make spray gun form vacuum; then among the protection of protective gas, spray, the film thickness of spraying is even, and have do not have among coating compressed-air actuated; so there is no the mixture of coating and air yet, make the pollution index of the working environment spraying lower.
Brief description of the drawings
Fig. 1 is the stereogram of metal framework of the present invention.
Fig. 2 is the process chart of the even spraying of metal framework of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be described in further detail.
A kind of metal framework provided by the invention is by stamping forming, and this technique comprises the following steps: (1) carries out the step of sawing sheet by shearing machine, makes the instruction sizing of descending according to sawing sheet and on shearing machine, locates rear cutting; (2) step of the material after sawing sheet being rushed to locating hole; (3) then, stretch; (4) after stretching, the step of carrying out punching trimming; (5) step of the material after punching trimming being rushed single flower, rushing ear flower; (6) material after shock wave is carried out to flange; (7) step finally spraying, forms final metal framework product.
Among said process, the present invention has adopted the even spraying coating process that is different from conventional art.
(1) clean.Sample being cleaned, rinsed before this with clear water, is then alkali cleaning, be finally pickling, water is full of desalted water after rinsing and finishing in container, treat that water temperature reaches between 50 DEG C～80 DEG C, allocates alkali cleaning chemicals: NaOH (40%), NaNO in order into
3, washing agent.After alkali cleaning, carry out clear water flushing, then carry out pickling, in container, be full of desalted water, treat that water temperature reaches between 50 DEG C～80 DEG C, allocates pickling chemicals into: corrosion inhibiter, citric acid, NH in order
4hF
2, and solution PH is adjusted in to 4.0～4.5 with ammoniacal liquor, after pickling, rinse with clear water again.
(2) dry.Sample after cleaning is carried out to drying and processing.
(3) carry out at ambient temperature, the spraying of protectiveness by vacuum spray painting machine.Treat that product temperature is down to room temperature, specimen surface is sprayed with vacuum spray painting machine.Among the present embodiment, coating adopts polyvinylidene fluoride resin, and its mechanical strength is product superior among fluororesin, and still can keep good intensity under certain temperature and pressurized, and hot strength is high, and impact strength is good, good toughness; Hardness is large, and wearability is good; Creep resistance is also comparative superiority among fluororesin.Protective gas is selected nitrogen.
In spraying process, need to select suitable technique Ginseng number, mainly contain: A) spray pressure, spray pressure is important technology Ginseng number, the quality on coating and efficiency have direct impact.By experiment, the pressure of the airless spraying pressure selection 1～3MPa of the present embodiment is advisable; B) spray distance, the distance between spray gun and workpiece is also to affect ー factor of coating quality, and spray gun is crossed and closely can be caused spray, and coating cloud backwash excessively far causes and flies paint, produces waste.By experiment, the airless spraying of the present embodiment is advisable apart from being controlled at 30～60mm.
S4. solidify, baking temperature is at 100 DEG C～160 DEG C, and the time is 15～60min.
Although described by reference to the accompanying drawings working of an invention mode; but the patent owner can make various distortion or amendment within the scope of the appended claims; as long as be no more than the described protection domain of the claim of invention, all should be within the protection domain of invention.
Claims (3)
1. an even spraying coating process for metal framework, comprises the following steps: the step that S1. cleans the surface of metal framework; The step of S2. drying; S3. carry out at ambient temperature, the step of the spraying of protectiveness by vacuum spray painting machine; S4. solidify, baking temperature is at 100 DEG C～160 DEG C, and the time is 5～30min.
2. the even spraying coating process of metal framework according to claim 1, is characterized in that: among above-mentioned steps S3, the spraying of described protectiveness refers to the surface that is sprayed at metal framework at coating under nitrogen protection.
3. the even spraying coating process of metal framework according to claim 1, is characterized in that: among above-mentioned steps S3, coating adopts polyvinylidene fluoride resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410292670.5A CN104043574A (en) | 2014-06-25 | 2014-06-25 | Process for uniform spraying of metal framework |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410292670.5A CN104043574A (en) | 2014-06-25 | 2014-06-25 | Process for uniform spraying of metal framework |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104043574A true CN104043574A (en) | 2014-09-17 |
Family
ID=51497251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410292670.5A Pending CN104043574A (en) | 2014-06-25 | 2014-06-25 | Process for uniform spraying of metal framework |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104043574A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105251682A (en) * | 2015-11-12 | 2016-01-20 | 上海贞嘉商贸有限公司 | Copper filter frame manufacture process |
| CN105499930A (en) * | 2015-12-28 | 2016-04-20 | 滁州美业机械制造有限公司 | Refrigerator bottom plate stamping pretreatment method |
| CN106269428A (en) * | 2016-08-19 | 2017-01-04 | 广东冠能电力科技发展有限公司 | A kind of Outdoor Terminal Case spray painting technique |
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| JPS62227476A (en) * | 1986-03-28 | 1987-10-06 | Toyota Motor Corp | Application of anti-corrosive agent |
| CN101525759A (en) * | 2009-04-22 | 2009-09-09 | 江阴金杰利电器配件制造有限公司 | Method for plating metal pieces |
| CN101954344A (en) * | 2010-05-31 | 2011-01-26 | 平湖市东洋塑胶真空涂膜厂 | Camera shell spraying process |
| CN102601029A (en) * | 2012-03-13 | 2012-07-25 | 天津市中环高科技有限公司 | Paint spraying and film coating process applied to speaker mesh of mobile phone |
| CN103084321A (en) * | 2013-01-19 | 2013-05-08 | 大连理工大学 | Preparation process for nanometer perfluorocarbon composite coating |
-
2014
- 2014-06-25 CN CN201410292670.5A patent/CN104043574A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62227476A (en) * | 1986-03-28 | 1987-10-06 | Toyota Motor Corp | Application of anti-corrosive agent |
| CN101525759A (en) * | 2009-04-22 | 2009-09-09 | 江阴金杰利电器配件制造有限公司 | Method for plating metal pieces |
| CN101954344A (en) * | 2010-05-31 | 2011-01-26 | 平湖市东洋塑胶真空涂膜厂 | Camera shell spraying process |
| CN102601029A (en) * | 2012-03-13 | 2012-07-25 | 天津市中环高科技有限公司 | Paint spraying and film coating process applied to speaker mesh of mobile phone |
| CN103084321A (en) * | 2013-01-19 | 2013-05-08 | 大连理工大学 | Preparation process for nanometer perfluorocarbon composite coating |
Non-Patent Citations (1)
| Title |
|---|
| 丁彰雄等: "《船舶机械修理工艺学》", 28 February 2013, 武汉理工大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105251682A (en) * | 2015-11-12 | 2016-01-20 | 上海贞嘉商贸有限公司 | Copper filter frame manufacture process |
| CN105499930A (en) * | 2015-12-28 | 2016-04-20 | 滁州美业机械制造有限公司 | Refrigerator bottom plate stamping pretreatment method |
| CN106269428A (en) * | 2016-08-19 | 2017-01-04 | 广东冠能电力科技发展有限公司 | A kind of Outdoor Terminal Case spray painting technique |
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Application publication date: 20140917 |